Reward is a non-selective, highly active contact herbicide, which spreads quickly through the water and makes fast contact with a broad spectrum of submerged, floating and marginal aquatic weeds. Apply in sunlight to actively growing weeds at the rate of 1 to 2 gallons per surface acre. Apply with a Surfactant for a more effective penetration of leaf. Please consult with us by e-mail to determine your target plant susceptibility and dosage required. Always read the product label before applying. This item cannot be sold to CA, CT, IA, ME, MI, MT, NE, NH, NJ, NY, and VT.